ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • GCFI  (2,950)
  • Conservation  (1,003)
  • Pollution  (909)
  • 2020-2022  (4,810)
  • 1
    facet.materialart.
    Unknown
    Pacific Islands: 30 by 30 (2021)
    In:  icsf@icsf.net | http://aquaticcommons.org/id/eprint/27119 | 25 | 2021-02-14 02:42:59 | 27119 | International Collective in Support of Fishworkers
    Details
    Publication Date: 2021-07-26
    Description: Renewed calls for marine conservation must not bulldoze the democratic route that has allowed small island nations to improve fisheries and incomes without damaging the marine ecology. I wanted to share some concerns regarding the danger that threatens to disrupt the management of the Pacific Islands’ signature fisheries and main independent source of income. There have been renewed calls for 30 per cent marine protected areas (MPAs) that sound suspiciously over-simplistic. Community-conserved areas come at many scales and the Pacific Islands’ chances of ensuring a multinational indigenous conserved area are threatened.
    Keywords: Conservation ; Fisheries ; ICSF ; samudra Report ; Pacific Islands ; MPA ; conservation ; income ; community conserved areas ; marine conservation
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 53-54
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Legislación e instrumentos de manejo existentes para la protección de los fondos marinos en la Plataforma Continental Argentina (2021)
    In:  esteban@inidep.edu.ar | http://aquaticcommons.org/id/eprint/27157 | 125 | 2020-12-12 13:03:17 | 27157 | Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina
    Details
    Publication Date: 2021-07-26
    Description: Se presenta un compendio de instrumentos vinculantes y no vinculantes referidos al manejo y protección de los fondos marinos y/o de los invertebrados bentónicos de la Plataforma Continental Argentina (PCA). Se analizaron leyes nacionales y acuerdos internacionales en los cuales la Argentina es signataria, así como declaraciones de FAO que establecen principios y normas aplicables a la conservación, ordenación y desarrollo de las pesquerías y ecosistemas asociados. Sobre la base de esta selección bibliográfica se analizó la evolución de las medidas a lo largo del tiempo en función del contexto internacional, a fin de esclarecer cuáles son los faltantes y los logros obtenidos en este proceso. Se concluye que la Argentina avanzó en la generación de políticas acordes a los lineamientos mundiales que implican un manejo ecosistémico y un mayor resguardo de la biodiversidad, por ejemplo, implementando Áreas Marinas Protegidas, así como con el enunciado de planes de investigación y fomento que involucran el estudio de los fondos marinos. Sin embargo, para algunas medidas su efectiva ejecución es parcial a partir de la falta de reglamentación y/o financiamiento. Asimismo, queda pendiente la elaboración de planes de acción concretos referidos al estudio del lecho marino incluido en los nuevos límites exteriores de la PCA.
    Keywords: Conservation ; Law
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 247-263
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    Searching the Virtually Extinct Tridacna gigas (Linnaeus, 1758) in the Reefs of Palawan, Philippines (2021)
    In:  njmf19mecha@gmail.com | http://aquaticcommons.org/id/eprint/27088 | 25026 | 2020-08-06 01:21:43 | 27088 | National Fisheries Research and Development Institute, Philippines
    Details
    Publication Date: 2021-07-24
    Description: Tridacna gigas (Cardiidae: Tridacninae) is the largest extant reef-associated bivalves that occur abundantly in the Indo-West Pacific Region. However, unregulated exploitation had caused localized extinction in many parts of its distribution range. In Palawan, the species was considered virtually extinct in the 1980s, and since then, no study has been done to monitor their status in the wild. In the absence of updated studies about T. gigas, we gathered information through field reports, key informants, and field visits. Within five months of data gathering, we recorded 97 empty shells (14 in pairs and 83 single shells) with 65.86 cm (range: 42-112 cm) average shell length, which were estimated to be from 5 to 〉76 years old. Most (78.36%) of the empty shells were used for decoration and landscaping. On the other hand, 29 live individuals with 73.69 cm (range: 42-109 cm) average shell length were estimated to be 5 to 〉76 years old. Tubbataha Reefs Natural Park and some island resorts harbored the highest number of live T. gigas. The presence of live T. gigas in these areas reflects years of effective management and the resorts’ essential contribution to resource conservation. These remaining live individuals could be used in breeding and restocking programs to restore their lost populations.
    Description: DOST-PCAARRD
    Description: QMSR-MRRD-MEC-314-1543
    Keywords: Conservation ; Fisheries ; bivalves ; conservation ; giant clams ; macroinvertebrates ; mollusks:Tridacna gigas
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-18
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 4
    facet.materialart.
    Unknown
    Estimation of Nutrient Load from Aquaculture Farms in Manila Bay, Philippines (2021)
    In:  ulyssesmontojo@gmail.com | http://aquaticcommons.org/id/eprint/27090 | 25026 | 2020-08-21 04:28:09 | 27090 | National Fisheries Research and Development Institute, Philippines
    Details
    Publication Date: 2021-07-24
    Description: Waste from aquaculture is considered as one of the possible causes of water quality deterioration in Manila Bay. Aquaculture in the area accounts for almost 30% of the total production in the Philippines. This high production entails intensified application of inputs that could possibly contribute to the nutrient (nitrogen, N and phosphorus, P) load in the bay. Thus, estimation of the N, P and SO4 loaded from aquaculture farms is necessary to develop more responsive intervention to reduce nutrient load in Manila Bay. Water samples were collected throughout the rearing period from different aquaculture systems in Cavite, Bulacan, Pampanga, and Bataan. The annual estimated N and P loaded from aquaculture farms were 12, 696.66 MT and 2, 363.01 MT, respectively. Fish pens/cages recorded the highest contribution accounting for 88% N and 86% P of the total load. It can be attributed to the direct release of uneaten feeds into the bodies of water. Roughly, 12% N and 14% P were obtained from the fishponds. Furthermore, the annual SO4 loaded from fishponds was estimated at 36,917.54 MT. Results of the study suggested that there should be an extensive monitoring of the environmental impacts and annual load of aquaculture farms for the sustainable regulations and management of aquaculture activities to reduce nutrient load and improve the aquaculture production as well. Finally, strict compliance to the regulatory guidelines and ordinances must be imposed to achieve the effluent quality standards.
    Description: Bureau of Fisheries and Aquatic Resources
    Keywords: Aquaculture ; Chemistry ; Ecology ; Environment ; Pollution ; fishponds ; fish pens/cages ; nitrogen ; phosphorus ; nutrient load
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 30-39
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    Status of Fisheries in Agusan Marsh: Lapaz and Talacogon, Agusan del Sur, Mindanao (2021)
    In:  joycebaclayo2016@gmail.com | http://aquaticcommons.org/id/eprint/27092 | 25026 | 2020-08-06 01:27:26 | 27092 | National Fisheries Research and Development Institute, Philippines
    Details
    Publication Date: 2021-07-24
    Description: In support to policy formulation of fisheries in Agusan Marsh, a stock assessment was conducted for the period of May 2014 to December 2016 using the data collected from Lapaz and Talacogon, Agusan del Sur within the Agusan Marsh. Results showed that Lapaz contributed 54% of the catch over Talacogon. A total of eighteen species, belonging to 13 genera and 11 families with 7 native and 11 introduced species were found in the marsh. Majority of the total catch consisted of Channa striata, Oreochromis niloticus, and Cyprinus carpio (35%, 27%, and 26%, respectively). Osphronemus laticlavius, Glossogobius celebius and Mugil cephalus were listed as seasonal species. An invasive janitor fish (Pterygoplichthys disjunctivus) was observed as by-catch. A strong pattern of high catch rates occurred during the rainy months of January, February, June, and December. Ten types of commonly used fishing gears were found, majority of which include fish pots, set gillnets, electrofishing and set long lines. Multivariate analysis showed similarity in species composition both in Lapaz and Talacogon. Exploitation of dominant species showed unsustainable level for O. niloticus, C. batrachus, C. caprio, andC. gariepinus, mainly due to excessive capture of immaturesized fishes by major fishing gears. The estimated exploitation rate is beyond the optimum level for O. niloticus and C. carpio in both years and followed by C. striata and C. gariepinus in 2016. Only C. bartachus is estimated to be exploited below the optimum level. Generally, the key species in Agusan Marsh are at risk of overfishing, hence, immediate policy measures must be given high attention.
    Keywords: Conservation ; Ecology ; Fisheries ; Management ; Planning ; Policies ; fisheries ; Agusan Marsh ; dominant species ; exploitation
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 54-82
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    Stock Assessment of Arius maculatus (Thurnberg, 1792) (Ariidae, Siluriformes) in Panguil Bay, Northwestern Mindanao (2021)
    In:  nday2jum@yahoo.com | http://aquaticcommons.org/id/eprint/27091 | 25026 | 2020-08-06 01:45:23 | 27091 | National Fisheries Research and Development Institute, Philippines
    Details
    Publication Date: 2021-07-24
    Description: Arius maculatus, commonly known as spotted catfish and locally known as Tambangongo, has a great potential as an aquaculture species, but there is very limited information known for the stocks in Panguil Bay. This study aimed to assess the wild stocks of A. maculatus, and make an inventory of the fishing boat and gears in two stations in Panguil Bay, namely: Tangub, Misamis Occidental and Baroy, Lanao del Norte. Length frequencies were analyzed to provide estimates of growth, mortality, exploitation ratio, and recruitment pulse of A. maculatus in the bay. A total of 589 boats (324 motorized boats and 265 non-motorized boats) were recorded from the sites. There were 473 units of 15 types of fishing gear used in the sites and 6 types of these were only used in catching A. maculatus. A total of 3,259 specimens were collected for 12 months from the sites. The aquatic habitat of A. maculatus from the two sites was characterized by a pH range of 7.9-8.1, temperature of 28.5-29.1°C, salinity of 13.31-15.9 ppt, dissolved oxygen levels of 4.0-5.41 ppm, and total suspended solid values of 0.1-0.6 g/L. Reproductive biology analysis indicates that eggs start to mature from October to December, then spawning starts from January to March, and the fish fry recruitment starts in April and May. A. maculatus can grow up to 98.95 cm with an asymptotic length of 98.86 cm (K value = 0.35) equivalent to asymptotic weigth of 8,750 g. Mortality Z = 0.99, with natural mortality M = 0.67 and fishing mortality F = 0.33. This study revealed that A. maculatus in Panguil Bay is not over-exploited since the exploitation rate (E = 0.33) is minimal and large individuals can still be collected from the field.
    Description: National Fisheries Research and Development Institute
    Keywords: Conservation ; Fisheries ; Management ; Planning ; Policies ; fisheries assessment ; life history ; Panguil Bay ; spotted catfish ; brackishwater
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 40-53
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 7
    facet.materialart.
    Unknown
    Growth, Development, and Survival of Portunus pelagicus Larvae and Juveniles in Different Feed Regimens, Rearing Media, and Stocking Densities (2021)
    In:  nitz_sur@yahoo.com | http://aquaticcommons.org/id/eprint/27094 | 25026 | 2020-08-06 01:12:44 | 27094 | National Fisheries Research and Development Institute, Philippines
    Details
    Publication Date: 2021-07-24
    Description: Various factors in P. pelagicus seed production and grow-out culture were investigated in this study. Experiments were conducted to 1) compare natural and artificial feeds for larval production, 2) evaluate indoor tank and outdoor net cages as rearing media, and 3) assess different stocking densities for grow-out culture. Growth, development, and survival were assessed for the performance of each variable. (I) In larval production, the development of megalopa larvae into crab instar was synchronous in both natural and artificial feed treatments in a 5-day rearing observation. Crab instars began to appear on Day 4 with 27% composition in both feeds. Although survival appeared to be relatively higher in natural feed (43.96 ± 6.04%), this was not significant from survival in artificial feed treatment (33.33 ± 13.34), (t = 0.726, p 〉 0.05). (II) In Phase I grow-out culture, a two-variable design experiment was conducted to assess growth performance and survival of crab juveniles reared in indoor tanks and outdoor net cages at different stocking densities. Specific growth rate (SGR) differed significantly (t = 2.937, p 〈 0.05) between indoor tanks (6.39 ± 0.24%.d-1) and outdoor net cages (8.31 ± 1.11%.d-1). However, mean survival rate was better in indoor tanks (20.83 ± 9.24%) than outdoor net cages (8.94 ± 3.58% only), (t = 2.938, p = 0.015). In terms of stocking density, SGR was highest in 75 ind.m-2 (7.87 ± 2.44%.d-1). However, growth performance and survival of juveniles among different stocking densities were not significantly different (p 〉 0.05). Furthermore, two-factor ANOVA results have shown that growth performance of the juveniles was influenced by both the differences in rearing medium and stocking density, but not in terms of survival (F = 0.120, p = 0.888). (III) In Phase II grow-out culture, juveniles attained highest SGR (3.54 ± 0.56%.d-1) at 5 ind.m-2 stocking density. This was followed by 15 ind.m-2 (3.45 ± 2.39%.d-1) and by 10 ind.m-2 (2.33 ± 0.50%.d-1) (p 〉 0.05). However, survival rate was highest in 15 ind.m-2 (46.67 ± 0.00%), but the differences among other stocking densities were not statistically significant (p 〉 0.05). Overall, results suggest that artificial feed can be an alternative for Artemia in rearing megalopae to crab instar stage. Stocking density in Phase I and II grow-out culture did not substantially affect growth performance and survival of juvenile P. pelagicus. However, higher stocking density increases incidence of cannibalism among reared crabs.
    Keywords: Aquaculture ; Biology ; Conservation ; Fisheries ; Artemia ; crab juveniles ; Portunus pelagicus ; megalopae ; seed production
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 92-102
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 8
    facet.materialart.
    Unknown
    Study on bioaccumulation of Aldrin, Diazinon and Endrin pesticides in the edible muscle tissues of commercially important fish species of the Anzali Wetland (2021)
    In:  http://aquaticcommons.org/id/eprint/25974 | 18721 | 2018-10-19 17:31:43 | 25974 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-24
    Description: The objectives of the present investigation were to study the bioaccumulation of Aldrin, Diazinon and Endrin pesticides in the edible muscle tissues of Tinca tinca, Rutilus frisii kutum, Carassius auratus, Cyprinus carpio, Silurus glanis and Esox lucius that were caught at various stations in the west, east and center of the Anzali Wetland and to compare the results with the standards of the World Health Organization (WHO). The concentration of organochlorine pesticide was determined using Gas Chromatography (GC) equipped with an electron capture detector. The concentration of organophosphorus pesticide was determined using Gas Chromatography/Mass Spectrometry (GC/MS). The highest concentration of Diazinon was detected in Esox lucius from the wetland east station (20.25 ppb). Significant differences were not observed in the amounts of Diazinon and Aldrin pesticides in the muscles of fish samples in various stations (P〉0/05). The highest amounts of Endrin were observed in the muscle of Cyprinus carpio from the wetland east and west stations which were significantly different compared to that of other fish species (P〈0/05). The amount of Aldrin in the Carassius auratus was significantly different compared to that of other fish species (P〈0/05). According to the results, the amounts of Aldrin, Diazinon and Endrin were lower than the detection limits of the WHO standards. Therefore, consumers are not at risk from the point of view of food safety.
    Keywords: Pollution ; Iran ; Anzali wetland ; Organochlorine pesticide ; Organophosphorus pesticide ; Commercially important ; Fish ; Edible muscle tissue ; Bioaccumulation ; Diazinon ; Tissues ; Species ; Tinca tinca ; Rutilus frisii kutum ; Carassius auratus ; Cyprinus carpio ; Silurus glanis ; Esox lucius
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 23-30
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 9
    facet.materialart.
    Unknown
    Assessment of water quality in the Wiśniówka River considering circulation of organic matter (2021)
    In:  http://aquaticcommons.org/id/eprint/25999 | 18721 | 2018-10-19 18:21:42 | 25999 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-24
    Description: Variation of hydrochemical conditions, with special reference to adequacy of waters as fish habitats, was traced based on selected hydrochemical parameters obtained during the studies conducted from February 2013 till February 2014 year. The results were compared with earlier studies. The sources of organic pollution were identified, and the effects of biogenic substances on the biomass, as well as the self-purification capability of the river, were assessed. The total suspension exceeded the requirements for waters which are habitats of both salmonid and cyprinid fishes. Compared to the previous years, the load of organic and inorganic matter in the waters of Wiśniówka River increased; this may have resulted from external inflow, neighbourhood of the hatchery but also, to a small extent, from internal supply. The high availability of nitrogen-(NNH_4+; N-NO_2-, N-NO_3-) and phosphorus-(total phosphorus; P-PO_4 ^3-) based biogenic (substances favoured the biomass production, thus contributing to the increase in organic matter load in the river.
    Keywords: Pollution ; Poland ; Wiśniówka River ; Aquatic ; Environment ; Estuary ; Fish ; Pollution ; Water quality ; Organic
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 690-712
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 10
    facet.materialart.
    Unknown
    Effects of endocrine disruption by 4-nonylphenol ethoxylate on the growth performance and immune response of female and male immature koi carp (Cyprinus carpio carpio) (2021)
    In:  http://aquaticcommons.org/id/eprint/26001 | 18721 | 2018-10-19 18:22:44 | 26001 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-24
    Description: Nonylphenol (NP) is an endocrine disrupting chemical which has been shown to be able tomodulate endocrine system of various organisms by different mechanisms. The objective of this study was to investigate the potential effects of 4-NP and 17-β - estradiol (E2) on the immune parameters (IgM levels and lysozyme activity) of the teleost Koi carp (Cyprinus carpio carpio) for a better understanding of the immunereproductive system interactions. The experimental fishes were injected with ascending doses (10, 50,100 μgg^-1 body weight) of 4- nonylphenol (4-NP) and (2 μgg^-1 body mass) of 17-β-estradiol (E2) or vehicle during 3 weeks. After 21 days, the fishes (180) were anesthetizedand their blood samples were collected from caudal vein, and then they were dissected and sexually separated by gonad characters. The measurement of immune parameters in plasma showed that 4-NP induced significant increase in the IgM levels and lysozyme activity at dose of 50 μgg^-1 while the levels of these parameters in the higher doses (100 μgg^-1) decreased compared with the control group (p〈0.05). In addition the treatment, with 2 μgg^-1 E2 significantly decreased both the IgM levels and lysozyme activity after 21 days of injection. These results indicated that 4-NP and E2 could lead to disturb the balance of immune system with potential consequences for immature koi carp.
    Keywords: Biology ; Pollution ; Iran ; 4-nonylphenol ; 17-β-estradiol ; Immune-reproductivesystem ; Immunoglobulin IgM ; Lysozyme ; Koi carp ; Cyprinus carpio carpio ; Disruption ; Growth performance ; Female ; Male
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 725-744
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...