Details of foreign trawl fishing in Australian waters from 1974 to 1990. The data is sourced from daily fishing returns recorded by the foreign fishers while at sea. Weights are estimates only

##Description While at sea, Commonwealth fishers must record all catch and effort in their AFMA daily fishing logbooks. This dataset shows the annual retained catch (meaning the catch that is not returned to the sea) in kilograms, by species and fishery, for Commonwealth fisheries managed by the Australian Fisheries Management Authority (AFMA). These data are sourced from AFMA daily fishing logbooks, which fishers complete while at sea, where generally the weights are estimates only. Fish discarded at sea are not included in this dataset. Location of catches within a fishery is not included. ##Appropriate use and limitations of the data The catch weight data in logbooks are estimates only, which have been recorded by fishers while at sea. Fishers usually cannot accurately weigh fish at sea, so the estimated weights are mostly based on volume (i.e. the size and number of boxes of fish caught). Catch data are used in combination with gear, effort, and spatial data to inform stock assessments. These data may differ from other summations over the same time period (such as stock assessment reports) due to differences in data handling procedures. For example, scientists may filter out catches from their assessments because of data quality issues or group species differently. In addition, the data may be different in other datasets with different summations such as catch by season or catch from the date fish were landed at port. Care should be taken when interpreting trends in this data because there are many factors that can affect catches each year. Catch quantities can be impacted by management measures such as: total allowable catch, closures of fishing areas, reducing boat numbers, or banning the catch of a particular species. Similarly, changes in market demand can affect which species are targeted. When the fish are landed at port, the accurate weight of fish is recorded in AFMA catch disposal records by both the fisher and fish receiver permit holder. This information can be found in the “Reported landed annual catch from Commonwealth fisheries catch disposal records” and its metadata, which is published on data.gov.au. ##Disclaimer The dataset provided by AFMA is comprised of raw (unprocessed) data as received from fishers, and may contain errors or be incomplete. Errors are more likely in the species caught in low volumes. AFMA makes no warranty or representation that the data is accurate or complete. Those who choose to use this data should make their own enquiries as to its accuracy and completeness, and AFMA assumes no liability for any errors or omissions in the data provided, or for any decision by a person who chooses to rely on the data.

This dataset comprises catch compositions and trawl locations from a cruise of the Russian fishery research vessel "Alba" carried out in Australian waters in March-April 1971, containing 91 demersal trawls from Bass Strait, the Great Australian Bight, and W and NW Western Australia coast. Most records include catch composition by species (presence/absence but not weight), also some data on length frequency, maturity and diet of commercially important species. The data were obtained by exchange with Soviet scientists in the mid 1990s and has had CSIRO species codes incorporated. The dataset is now in an Oracle database in Hobart, and analyses/summaries of the data are given in the accompanying report (see References). A MS Access version of the dataset has been compiled for use within the North West Shelf-JEMS study. This version is available on-line for researchers in the NWS-JEMS study (see data links). The data are also accessible to authorised users via CMR's "Data Trawler" application. A username and password is required to access this dataset.

The datasets contain summaries of Western Australia logbook data on catch and effort distribution for commercial fisheries in state marine and estuarine waters. The logbook data has been recorded and submitted to WA Department of Primary Industries and Regional Development by commercial fishers. The data are aggregated to produce summaries of total catch and effort by fishery at a 0.1 degree resolution where 5 boats or more operate. For areas where less than 5 boats operate the data is shown as confidential. The data was mapped using 5 year - financial year periods; 2003/04 to 2007/08, 2008/09 to 2012/13, 2018/19 to 2022/23, and 1 year; 2022/23.

This record contains fisheries statistics, History of Marine Animal Populations, trawling, overfishing from the Australian fishing industry between 1951 and 1957.

##Description This dataset shows the annual landed catch (meaning the catch that is landed at port) in kilograms, by species and fishery, for Commonwealth fisheries managed by the Australian Fisheries Management Authority (AFMA). These data come from AFMA catch disposal records (CDRs), and have been recorded and submitted to AFMA by commercial fishers and fish receiver permit holders when fish are landed at port. Fish discarded at sea are not included in CDRs and therefore are not included in this dataset. ##Appropriate use and limitations of the data These annual catches are calculated from the date the fish was landed at a port. This means that comparisons with other datasets with different summations (for example, catch by fishing season or catch from the date the fish were removed from the ocean) may produce different results. Care should be taken when interpreting trends in this data because there are many factors that can affect catches each year. Catch quantities can be impacted by management measures such as: total allowable catch, closures of fishing areas, reducing boat numbers, or banning the catch of a particular species. Similarly, changes in market demand can affect which species are targeted. CDRs are used to monitor quota (see Individual Transferable Quota)). AFMA total allowable catches (TAC)s are set for fishing seasons rather than calendar years. See catchwatch for seasonal catch to date compared to TAC for AFMA’s larger quota fisheries. Not all fisheries have CDRs, and in some fisheries the CDR program was started part-way through an annual time-period. These catch disposal record data do not include catch by gear type. This information can be found in the “Reported landed annual catch from Commonwealth fisheries logbooks” and its metadata, which is published on data.gov.au. Note that catch weight data in logbooks are estimates only that have been recorded by fishers while at sea. It is used in combination with gear, effort, and spatial data from logbooks to inform stock assessments. ##Disclaimer The dataset provided by AFMA is comprised of raw (unprocessed) data as received from fishers and fish receivers, and may contain errors or be incomplete. Errors are more likely in species caught in low volumes. AFMA makes no warranty or representation that the data is accurate or complete. Those who choose to use this data should make their own enquiries as to its accuracy and completeness, and AFMA assumes no liability for any errors or omissions in the data provided, or for any decision by a person who chooses to rely on the data.

This data set contains summaries of AFMA log book data on effort distribution for Commonwealth fisheries in the Australian Exclusive Economic Zone (excluding Cocos and Christmas Islands, Norfolk Island and the Sub-Antarctic Fisheries). The logbook data has been recorded and submitted to AFMA by commercial fishers. The data has been aggregated to produce summaries of total effort by gear type (summarised across fishery), over 5 year periods and at a 0.1 degree resolution where 5 boats or more operate. All effort information has been removed for areas where less than 5 boats operate and these areas are mapped to a 1 degree resolution. The 5 years periods (1996-2000, 2001-2005 and 2006-2010) correspond to State of Environment (SoE) Reporting, required under the EPBC Act 1999. The most recent reporting period (2011-14) is a four year period. Each is labelled by the years aggregated (ie 2001-2005) and the gear type (ie LLP = long line pelagic). The gear codes and aggregated fisheries and the shape file field descriptions are listed below. Notes: 1. Care needs to be taken when interpreting the fishing effort maps because in areas where there are less than 5 boats operating only the fishing footprint is displayed, consistent with the AFMA Information Disclosure Policy. The fishing footprint indicates that fishing occurred but does not provide information about the intensity of effort (number of operations etc). 2. Legal fishing by foreign flagged vessels occurred in the 1980s and early 1990s in the Australian Fishing Zone. These are shown as areas of higher effort in (i) trawl maps prior to 1990 north of Arnhem Land and (ii) pelagic longline maps up until 1997 south of Tasmania. 3. Minor line was historically recorded as a method in some of AFMA’s daily fishing logbooks, but is not in AFMAs current fishery logbooks. Minor line means trolling, or fishing using a rod or reel, handline or pole. 4. Trawl effort maps are missing Torres Strait Prawn Fishery data prior to 2004. 5. Gillnet effort maps prior to 1996 are not included due to data incompleteness. 6. Jigging data is currently incomplete and is not included. 7. Three records of Danish Seine were misreported (between 1996 and 2010) in the area of the Great Barrier Reef and have been removed. 8. Minor line was historically recorded as a method in some of AFMA’s daily fishing logbooks, but is not in AFMAs current fishery logbooks. Minor line means trolling, or fishing using a rod or reel, handline or pole. 9. Disclaimer: The data provided by AFMA may contain errors or be incomplete. AFMA makes no warranty or representation that the data is accurate or complete. Those who choose to use this data should make their own enquiries as to its accuracy and completeness and AFMA assumes no liability for any errors or omissions in the data provided, or for any decision by a person who chooses to rely on the data. Field descriptions for shapefiles: CSQ_CODE: C-Squares code. 1 degree and 0.1 degree grids used CSQ_RESLN: C-Squares resolution of current polygon VESSELS: Number of vessels OPERATIONS: Number of operations HOURS: Effort in hours from start and end time HOOKSSET: Total hooks set NUMLINES: Number of lines deployed NETLENGTH: Gillnet Net Length Fishery Aggregations GEAR_CODE_CSIRO GEAR_CODE_CSIRO_DESCN FISHERY NAME AL Auto Longline CSF Coral Sea Fishery AL Auto Longline GHT Gillnet, Hook and Trap Fishery AL Auto Longline SEN South East Non-Trawl Fishery AL Auto Longline TUN Tuna Fishery BL Demersal Longline CSF Coral Sea Fishery BL Demersal Longline ECT Eastern Tuna & Billfish Fishery BL Demersal Longline GHT Gillnet, Hook and Trap Fishery BL Demersal Longline SEN South East Non-Trawl Fishery BL Demersal Longline SSF Southern Shark Fishery BL Demersal Longline SSG Southern Shark Gillnet Fishery BL Demersal Longline SSH Southern Shark Hook Fishery DS Danish Seine GAB Great Australian Bight Fishery DS Danish Seine SET South East Trawl Fishery DS Danish Seine VIT Victorian Inshore Trawl

The Marine Scale Fishery has traditionally been one in which fishing effort shifts temporarily and spatially between species, depending on their relative abundance and value. SARDI research projects have concentrated on providing information on key biological parameters of several of the major species, including King George whiting, Snapper, Garfish, and Southern calamary. The Marine Scale system monitors catch and effort fluctuations in South Australia's Marine Scalefish fishery and provides a basis for assessment of fish stocks. Quantity of fish (by species) and effort (by gear) expended in taking the catch is recorded by monthly returns submitted by the commercial fisher.

This dataset comprises catch compositions and trawl locations from a cruise of the Russian fishery research vessel "Berg-2" carried out in Australian waters between January and June 1966, containing 529 demersal trawls from Bass Strait, South Australia coast, the Great Australian Bight and Western Australia coast. Most records include catch composition by species (presence/absence but not weight), also some data on length frequency, maturity and diet of commercially important species. The data were obtained by exchange with Soviet scientists in the mid 1990s and has had CSIRO species codes incorporated. The dataset is now in an Oracle database in Hobart, and analyses/summaries of the data are given in the accompanying report (see References). A MS Access version of the dataset has been compiled for use within the North West Shelf-JEMS study. This version is available on-line for researchers in the NWS-JEMS study (see data links). The data are also accessible to authorised users via CMR's "Data Trawler" application. A username and password is required to access this dataset.